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Field Exploratory Boring Log SB-4 <br /> PID Blows/ Sample Well Depth Soil Group Materials Description <br /> (ppm) 6" Number Construction (ft) (USCS) <br /> 0 0 SB-4 30 0 @30' as above, grayish brown(2 5Y 5/2), dry, 100%fines <br /> cc <br /> a � <br /> o.= <br /> 00 ; C SB-4-35 0 35 @ 35' as above, dry <br /> ' Sand(SP) <br /> Co Olive gray (5Y 5/2), loose,damp, 10% tines, <br /> 90%medium sand <br /> 00 SB-4 40 0 40 Silt(ML) <br /> Dark grayish brown(10YR 4/2), stiff, dry, no plasticity, <br /> 65% fines, 35% fine sand <br /> 200 SB-4-45 o 45 @ 45' as above, dark grayish brown(2 5Y 4/2), dry <br /> 00 SB-4-50 0 50 Silty Sand(SM) <br /> Dark grayish brown (2 5Y 4/2),medium dense, wet, 20% lines, <br /> 80% medium sand <br /> 55 — @ 55' as above, grayish brown(2 5Y 4/2), dense, 10% fines, <br /> 00 90%medium sand <br /> SB-4 56 o Silt(ML) <br /> Dark yellowish brown (IQYR 4/6), very stiff, dry, <br /> low to medium plasticity, 90% fines, 10% fine sand <br /> 60 <br /> BORING Borehole Diameter 6 inches Page 2 of 3 <br /> Shell-branded Service Station Logged by A Cool C',AMBRI <br /> 880 Victor Road Driller Gregg Drilling 240.0955 <br /> SB-4 <br /> Lodi, California Date Started 14-Jan-99 <br /> Date Completed 15-Jan-99 <br />